A primary key that consists of more than a single field is called a ________ key
A) merged
B) compound
C) composite
D) combined
C
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Suppose you want to verify that the user has entered a value into a text box named txtInput. Which of the following code segments responds with an appropriate message if the user does not enter a value?
a.``` If txtInput.text <> "" Then lblStatus.Text = “No data has been entered” End If ``` b.``` If txtInput.Text = " " Then lblStatus.Text = “No data has been entered” End If ``` c.``` If txtInput <> String.Empty Then lblStatus.Text = “No data has been entered” End If ``` d.``` If txtInput.Text = String.Empty Then lblStatus.Text = “No data has been entered” End If ```
What type of wireless connection is used to connect the home network to a multipoint distribution site?
What will be an ideal response?
In a multitiered Web-based application, the middle tier is called the server and contains the________.
Fill in the blank(s) with the appropriate word(s).
Count is an SQL aggregate function
Indicate whether the statement is true or false